Who is hammer in Marvel?

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Tags

1. #comics
2. #universe
3. #published
4. #justin
5. #american
6. #adversary
7. #fictional
8. #known
9. #shared
10. #exists
11. #character
12. #comic
13. #appearing
14. #superhero
15. #books
16. #hammer
17. #frequent
18. #marvel